Thermionic Properties of Some Refractory Metal Carbides
- 1 July 1963
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 34 (7) , 2033-2039
- https://doi.org/10.1063/1.1729731
Abstract
The low-field thermionic emission properties of vacuum hot-pressed samples of MoC, Ta0.8Zr0.2C, TiC, HfC, TaC, and ZrC in polycrystalline bulk form have been measured over the temperature range 1300° to 1900°K. The samples were well characterized by metallographic examinations and x-ray diffraction analyses. A correlation between microstructure and thermionic emission was observed. The MoC sample was found to be the most copious electron emitter, while the ZrC sample, which was carbon deficient, had the smallest electron emission over the temperature range investigated.This publication has 10 references indexed in Scilit:
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